(5x^3-6x^2+9x-2)+(7x^4-8x^3+7x-5)=99-x

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Solution for (5x^3-6x^2+9x-2)+(7x^4-8x^3+7x-5)=99-x equation: 


Simplifying
(5x3 + -6x2 + 9x + -2) + (7x4 + -8x3 + 7x + -5) = 99 + -1x

Reorder the terms:
(-2 + 9x + -6x2 + 5x3) + (7x4 + -8x3 + 7x + -5) = 99 + -1x

Remove parenthesis around (-2 + 9x + -6x2 + 5x3)
-2 + 9x + -6x2 + 5x3 + (7x4 + -8x3 + 7x + -5) = 99 + -1x

Reorder the terms:
-2 + 9x + -6x2 + 5x3 + (-5 + 7x + -8x3 + 7x4) = 99 + -1x

Remove parenthesis around (-5 + 7x + -8x3 + 7x4)
-2 + 9x + -6x2 + 5x3 + -5 + 7x + -8x3 + 7x4 = 99 + -1x

Reorder the terms:
-2 + -5 + 9x + 7x + -6x2 + 5x3 + -8x3 + 7x4 = 99 + -1x

Combine like terms: -2 + -5 = -7
-7 + 9x + 7x + -6x2 + 5x3 + -8x3 + 7x4 = 99 + -1x

Combine like terms: 9x + 7x = 16x
-7 + 16x + -6x2 + 5x3 + -8x3 + 7x4 = 99 + -1x

Combine like terms: 5x3 + -8x3 = -3x3
-7 + 16x + -6x2 + -3x3 + 7x4 = 99 + -1x

Solving
-7 + 16x + -6x2 + -3x3 + 7x4 = 99 + -1x

Solving for variable 'x'.

Reorder the terms:
-7 + -99 + 16x + x + -6x2 + -3x3 + 7x4 = 99 + -1x + -99 + x

Combine like terms: -7 + -99 = -106
-106 + 16x + x + -6x2 + -3x3 + 7x4 = 99 + -1x + -99 + x

Combine like terms: 16x + x = 17x
-106 + 17x + -6x2 + -3x3 + 7x4 = 99 + -1x + -99 + x

Reorder the terms:
-106 + 17x + -6x2 + -3x3 + 7x4 = 99 + -99 + -1x + x

Combine like terms: 99 + -99 = 0
-106 + 17x + -6x2 + -3x3 + 7x4 = 0 + -1x + x
-106 + 17x + -6x2 + -3x3 + 7x4 = -1x + x

Combine like terms: -1x + x = 0
-106 + 17x + -6x2 + -3x3 + 7x4 = 0

The solution to this equation could not be determined.

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